Fenced



F, L. SAWYER.

PENCIL.

APPLICATION FILED MAR.23.1920.

1,40 ,5 5; Patented Feb. 14, 1922.

UNITED STATES PATENT OFFICE.

FREDERICK L. SAWYER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF T0CHRISTIAN BERGER, 0F BROOKLYN, NEW YORK.

PENCIL.

Specification of Letters Patent.

Patented Feb. 14: 1922.

Application filed March 23, 1920. Serial No. 368,113.

To all whom it may concern:

Be it known that I, FREDERICK L. SAWYER, a citizen of the United States,and resident of New York, in the county of New York and State of NewYork, have invented certain new and useful Improvements in a Penoil, ofwhich the following is a specification.

This invention relates to pencils of the magazine and self-feeding type.

Magazine and self-feeding pencils made of metal are already known and inmost forms the pencil must be disassembled to insert a new lead from themagazine. Such forms have had. an unsatisfactory writing balance byreason of the improper distribution of mass due to the multiplicity ofparts of the feed and magazine.

One of the objects of this invention is to provide a pencil of few partswherein the lead is fed by a resilient ejector a predetermined amount bypressing the pencil vertically upon the writing material and releasingthe pressure. v

Another object is to provide a self-feeding pencil that can be reloadedfrom the magazine by gravity or the magazine charged withoutdisassembly.

Still another object is to provide a pencil that may be carried flat ina vest pocket or purse without injury to the pocket and one which willbe of convenient length for writing when in use.

A further object of this invention is to provide a pencil with theproper writing balance wherein the weight is concentrated near thepoint.

Other objects will appear more fully hereinafter.

Referring to the drawings:

Figure I is a longitudinal sectional view of a pencil embodying theprinciples of my invention.

Figure II is a longitudinal sectional view with the sheath in reloadingposition.

Figure III is an enlarged cross sectional View of Fi ure I along theline 3, 3.

Figure I F is an enlarged cross sectional view of Figure I looking inthe direction of the arrows along the line 4, l.

Figure V is a longitudinal sectional view of a pencil having a modifiedform of magazine.

Figure VI is an enlarged sectional view looking in the direction of thearrows along the line 6, 6.

The pencil is composed of but four parts, a barrel 1, a sheath 2 for thelead, a spring 4, and a cap 3.

The barrel 1 is slightly tapered exteriorly at 20, 21, near both ends,to frictionally hold cap 3 when it is placed thereon. WVithin barrel 1is a cylindrical chamber 15, closed at 16 and open at the other end.Sheath 2 has a central. bore 10 for the leads 11 and operates withinchamber 15. One end of spring l forms a lead ejector 5 within bore 10 ofsheath and the other end forms a stop 6 to prevent the insertion of thesheath 2 too far into barrel 1. Stop 6 is an open coil and hencefrictionally holds the spring 4%. in its position in the barrel chamber1.5. Sheath 2 carries pin 8 operating in channel 7 to limit thewithdrawal of the sheath 2 from the barrel. Magazine 9 is formed insheath 2 by cutting out a V shaped chamber communicating with the bore10. Gap 3 is a hollow cylinder and has a plug 13 frictionally held inone end. Plug 18 is adapted. to hold eraser 1. L in any suitable mannercapable of replacement such as frietionally or threaded therein. Plug 13can be reversed in cap 3 to keep the eraser l4 clean.

To cause the lead to feed in case of breakage or wear the pencil is heldvertically by the barrel 1 and the end 19 is pressed down upon the papercausing sheath 2 leads 11 and spring a to be forced back into thebarrel. Upon relieving the pressure the sheath 2 remains in the barrelbut the spring 4: eX- pands extruding a portion of the lead.

A new lead may be loaded into the bore 10 by withdrawing the sheath 2,holding the pencil horizontal with the channel 7 at the bottom, untilthe ejector portion 5 of spring 4 is beyond the end of the magazine whena lead will feed into the bore 10 by gravity. The leads in the magazineare visible in the preferred embodiment of my invention,

When reloading the sheath. The sheath 2 is then pushed back into thebarrel to operating position. The magazine 9 can be refilled byWithdrawing sheath 2 until stopped by pin8 and. inserting the leads inthe uncovered magazine.

Various modifications in the shape and design of the magazine might bemade and l have shown one such modification in Figures .V and VI whereinthe magazine. 9 is formed by. a circular recess 22 in sheath 2 andhaving a communicating'slot 23 With bore 10. Projection 24 of sheath 2prevents the leads 11 from being rotated past slot 23,. The reloading isaccomplished by Withdrawing sheath 2 until the end of the ejector 5 isbeyond the end of themagazine to cause a lead to drop from the slot 23into bore 10. The slot 23 is filled by slightly rotating the pencih Toload magazine 9, sheath 2 is Withdrawn until stopped by pin 8, the

pencil is then held vertically and the leads 11 are then inserted inrecess 22 and are held :in the cup formed by the projecting end ofbarrel 1 and recess 22 until the sheath is pushed back into the barrelto operating position.

the lead in the sheath is immaterial and I contemplate using severallengths since the operation is equally eilicient and it permits of myshortening the length of the pencil.

What I claim is:

1. In a pencil comprising a barrel and a sheath, a spring in said barrelhaving one end forming. a lead ejector and the other end forming a stopfor the sheath.

.- 2. In a pencil comprising a barrel and a sheath, a spring in saidbarrel having one end forming a lead ejector in saidsheath and the otherend terminating in a coil to bear against the side Wall of said barrelto prevent longitudinal displacement of said spring. i v

3. In a pencil, a barrel a solid member having a tight slidingfrictional fit telescoping in the barrel, a bore in said solid member tohold several lengths of lead, a spring in said barrel having one endforming .an ejector in said barrel and the other end bent to form a stopfor the solid member,. said bent end adapted to frietionally engage thecylindrical Wall of theboreof the barrel to prevent longitudinaldisplacement of said ejector spring.

Signed at Lake ales, in the county of Polk and State of Florida, this6th day of March, A. D. 1920.

FREDERICK L. SAWYER.

